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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: OutputChunks.html 19 2015-01-15 23:13:28Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.msrp;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.io.ByteArrayOutputStream;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.io.Closeable;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.io.IOException;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.io.InputStream;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.util.Iterator;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.NoSuchElementException;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.concurrent.Executor;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.dellroad.msrp.msg.ByteRange;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.dellroad.msrp.msg.FailureReport;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.dellroad.msrp.msg.Header;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.dellroad.msrp.msg.MsrpHeaders;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.dellroad.msrp.msg.MsrpMessage;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.dellroad.msrp.msg.MsrpRequest;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.dellroad.msrp.msg.Status;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.slf4j.Logger;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.slf4j.LoggerFactory;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>/**<a name="line.28"></a>
<span class="sourceLineNo">029</span> * Represents one outgoing MSRP message broken into multiple {@code SEND} {@link MsrpRequest} chunks.<a name="line.29"></a>
<span class="sourceLineNo">030</span> */<a name="line.30"></a>
<span class="sourceLineNo">031</span>public class OutputChunks implements Closeable, Iterator&lt;MsrpRequest&gt; {<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>    private static final int MAX_REQUEST_BODY_SIZE = 2048;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>    private final Logger log = LoggerFactory.getLogger(this.getClass());<a name="line.35"></a>
<span class="sourceLineNo">036</span>    private final MsrpUri localURI;<a name="line.36"></a>
<span class="sourceLineNo">037</span>    private final MsrpUri remoteURI;<a name="line.37"></a>
<span class="sourceLineNo">038</span>    private final String messageId = MsrpMessage.randomId();<a name="line.38"></a>
<span class="sourceLineNo">039</span>    private final Iterable&lt;? extends Header&gt; headers;<a name="line.39"></a>
<span class="sourceLineNo">040</span>    private final InputStream input;<a name="line.40"></a>
<span class="sourceLineNo">041</span>    private final String contentType;<a name="line.41"></a>
<span class="sourceLineNo">042</span>    private final long size;<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>    private ReportListener reportListener;<a name="line.44"></a>
<span class="sourceLineNo">045</span>    private long offset;<a name="line.45"></a>
<span class="sourceLineNo">046</span>    private boolean complete;<a name="line.46"></a>
<span class="sourceLineNo">047</span>    private boolean aborted;<a name="line.47"></a>
<span class="sourceLineNo">048</span>    private boolean closed;<a name="line.48"></a>
<span class="sourceLineNo">049</span>    private long timestamp;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span>    /**<a name="line.51"></a>
<span class="sourceLineNo">052</span>     * Constructor for a message with no body.<a name="line.52"></a>
<span class="sourceLineNo">053</span>     */<a name="line.53"></a>
<span class="sourceLineNo">054</span>    public OutputChunks(MsrpUri localURI, MsrpUri remoteURI, Iterable&lt;? extends Header&gt; headers, ReportListener reportListener) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>        this(localURI, remoteURI, null, -1, null, headers, reportListener);<a name="line.55"></a>
<span class="sourceLineNo">056</span>    }<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>    /**<a name="line.58"></a>
<span class="sourceLineNo">059</span>     * Constructor for a message with a body.<a name="line.59"></a>
<span class="sourceLineNo">060</span>     *<a name="line.60"></a>
<span class="sourceLineNo">061</span>     * @param localURI local MSRP URI<a name="line.61"></a>
<span class="sourceLineNo">062</span>     * @param remoteURI remote MSRP URI<a name="line.62"></a>
<span class="sourceLineNo">063</span>     * @param input message content input, or null for no content<a name="line.63"></a>
<span class="sourceLineNo">064</span>     * @param size size of input, or -1 if unknown; if not -1 and {@code input} is longer than {@code size}, it will be truncated<a name="line.64"></a>
<span class="sourceLineNo">065</span>     * @param contentType content type<a name="line.65"></a>
<span class="sourceLineNo">066</span>     * @param headers other headers (MIME and/or extension), or null for none<a name="line.66"></a>
<span class="sourceLineNo">067</span>     * @param reportListener success and/or failure listener, or null for none<a name="line.67"></a>
<span class="sourceLineNo">068</span>     * @throws IllegalArgumentException if {@code localURI} or {@code remoteURI} is null<a name="line.68"></a>
<span class="sourceLineNo">069</span>     * @throws IllegalArgumentException if {@code input} is null and {@code size != -1} or {@code contentType} is not null<a name="line.69"></a>
<span class="sourceLineNo">070</span>     * @throws IllegalArgumentException if {@code input} is not null and {@code contentType} is null<a name="line.70"></a>
<span class="sourceLineNo">071</span>     */<a name="line.71"></a>
<span class="sourceLineNo">072</span>    public OutputChunks(MsrpUri localURI, MsrpUri remoteURI, InputStream input, long size,<a name="line.72"></a>
<span class="sourceLineNo">073</span>      String contentType, Iterable&lt;? extends Header&gt; headers, ReportListener reportListener) {<a name="line.73"></a>
<span class="sourceLineNo">074</span>        if (localURI == null)<a name="line.74"></a>
<span class="sourceLineNo">075</span>            throw new IllegalArgumentException("null localURI");<a name="line.75"></a>
<span class="sourceLineNo">076</span>        if (remoteURI == null)<a name="line.76"></a>
<span class="sourceLineNo">077</span>            throw new IllegalArgumentException("null remoteURI");<a name="line.77"></a>
<span class="sourceLineNo">078</span>        if (input == null) {<a name="line.78"></a>
<span class="sourceLineNo">079</span>            if (size != -1)<a name="line.79"></a>
<span class="sourceLineNo">080</span>                throw new IllegalArgumentException("null input requires size = -1");<a name="line.80"></a>
<span class="sourceLineNo">081</span>            if (contentType != null)<a name="line.81"></a>
<span class="sourceLineNo">082</span>                throw new IllegalArgumentException("null input requires null contentType");<a name="line.82"></a>
<span class="sourceLineNo">083</span>        } else {<a name="line.83"></a>
<span class="sourceLineNo">084</span>            if (size &lt; -1)<a name="line.84"></a>
<span class="sourceLineNo">085</span>                throw new IllegalArgumentException("invalid size " + size);<a name="line.85"></a>
<span class="sourceLineNo">086</span>            if (contentType == null)<a name="line.86"></a>
<span class="sourceLineNo">087</span>                throw new IllegalArgumentException("null contentType");<a name="line.87"></a>
<span class="sourceLineNo">088</span>        }<a name="line.88"></a>
<span class="sourceLineNo">089</span>        this.localURI = localURI;<a name="line.89"></a>
<span class="sourceLineNo">090</span>        this.remoteURI = remoteURI;<a name="line.90"></a>
<span class="sourceLineNo">091</span>        this.input = input;<a name="line.91"></a>
<span class="sourceLineNo">092</span>        this.size = size;<a name="line.92"></a>
<span class="sourceLineNo">093</span>        this.contentType = contentType;<a name="line.93"></a>
<span class="sourceLineNo">094</span>        this.reportListener = reportListener;<a name="line.94"></a>
<span class="sourceLineNo">095</span>        this.headers = headers;<a name="line.95"></a>
<span class="sourceLineNo">096</span>        this.timestamp = System.nanoTime();<a name="line.96"></a>
<span class="sourceLineNo">097</span>    }<a name="line.97"></a>
<span class="sourceLineNo">098</span><a name="line.98"></a>
<span class="sourceLineNo">099</span>    /**<a name="line.99"></a>
<span class="sourceLineNo">100</span>     * Get the unique message ID for this message.<a name="line.100"></a>
<span class="sourceLineNo">101</span>     */<a name="line.101"></a>
<span class="sourceLineNo">102</span>    public String getMessageId() {<a name="line.102"></a>
<span class="sourceLineNo">103</span>        return this.messageId;<a name="line.103"></a>
<span class="sourceLineNo">104</span>    }<a name="line.104"></a>
<span class="sourceLineNo">105</span><a name="line.105"></a>
<span class="sourceLineNo">106</span>    /**<a name="line.106"></a>
<span class="sourceLineNo">107</span>     * Get the associated {@link ReportListener}, if any.<a name="line.107"></a>
<span class="sourceLineNo">108</span>     */<a name="line.108"></a>
<span class="sourceLineNo">109</span>    public synchronized ReportListener getReportListener() {<a name="line.109"></a>
<span class="sourceLineNo">110</span>        return this.reportListener;<a name="line.110"></a>
<span class="sourceLineNo">111</span>    }<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>    /**<a name="line.113"></a>
<span class="sourceLineNo">114</span>     * Get the size of the message body, if known.<a name="line.114"></a>
<span class="sourceLineNo">115</span>     *<a name="line.115"></a>
<span class="sourceLineNo">116</span>     * @return message body size, or -1 if size was not specified and message has not been fully sent yet<a name="line.116"></a>
<span class="sourceLineNo">117</span>     */<a name="line.117"></a>
<span class="sourceLineNo">118</span>    public synchronized long getSize() {<a name="line.118"></a>
<span class="sourceLineNo">119</span>        return this.size == -1 &amp;&amp; this.complete ? this.offset : this.size;<a name="line.119"></a>
<span class="sourceLineNo">120</span>    }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span>    /**<a name="line.122"></a>
<span class="sourceLineNo">123</span>     * Determine whether this instance has been aborted.<a name="line.123"></a>
<span class="sourceLineNo">124</span>     */<a name="line.124"></a>
<span class="sourceLineNo">125</span>    public synchronized boolean isAborted() {<a name="line.125"></a>
<span class="sourceLineNo">126</span>        return this.aborted;<a name="line.126"></a>
<span class="sourceLineNo">127</span>    }<a name="line.127"></a>
<span class="sourceLineNo">128</span><a name="line.128"></a>
<span class="sourceLineNo">129</span>    public synchronized long getIdleTime() {<a name="line.129"></a>
<span class="sourceLineNo">130</span>        return (System.nanoTime() - this.timestamp) / 1000000L;<a name="line.130"></a>
<span class="sourceLineNo">131</span>    }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>    /**<a name="line.133"></a>
<span class="sourceLineNo">134</span>     * Notify about success, if appropriate.<a name="line.134"></a>
<span class="sourceLineNo">135</span>     *<a name="line.135"></a>
<span class="sourceLineNo">136</span>     * @param session session on which the message was transmitted<a name="line.136"></a>
<span class="sourceLineNo">137</span>     * @param executor executor used to issue notification<a name="line.137"></a>
<span class="sourceLineNo">138</span>     * @param byteRange range of bytes successfully received<a name="line.138"></a>
<span class="sourceLineNo">139</span>     */<a name="line.139"></a>
<span class="sourceLineNo">140</span>    public synchronized void notifySuccess(final Session session, Executor executor, final ByteRange byteRange) {<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span>        // Sanity check<a name="line.142"></a>
<span class="sourceLineNo">143</span>        if (executor == null)<a name="line.143"></a>
<span class="sourceLineNo">144</span>            throw new IllegalArgumentException("null executor");<a name="line.144"></a>
<span class="sourceLineNo">145</span>        if (byteRange == null)<a name="line.145"></a>
<span class="sourceLineNo">146</span>            throw new IllegalArgumentException("null byteRange");<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>        // Is success notification desired?<a name="line.148"></a>
<span class="sourceLineNo">149</span>        if (!(this.reportListener instanceof SuccessListener))<a name="line.149"></a>
<span class="sourceLineNo">150</span>            return;<a name="line.150"></a>
<span class="sourceLineNo">151</span>        final SuccessListener successListener = (SuccessListener)this.reportListener;<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span>        // Notify<a name="line.153"></a>
<span class="sourceLineNo">154</span>        executor.execute(new Runnable() {<a name="line.154"></a>
<span class="sourceLineNo">155</span>            @Override<a name="line.155"></a>
<span class="sourceLineNo">156</span>            public void run() {<a name="line.156"></a>
<span class="sourceLineNo">157</span>                try {<a name="line.157"></a>
<span class="sourceLineNo">158</span>                    successListener.reportSuccess(session, OutputChunks.this.messageId, byteRange);<a name="line.158"></a>
<span class="sourceLineNo">159</span>                } catch (ThreadDeath t) {<a name="line.159"></a>
<span class="sourceLineNo">160</span>                    throw t;<a name="line.160"></a>
<span class="sourceLineNo">161</span>                } catch (Throwable t) {<a name="line.161"></a>
<span class="sourceLineNo">162</span>                    OutputChunks.this.log.error("error in listener notification", t);<a name="line.162"></a>
<span class="sourceLineNo">163</span>                }<a name="line.163"></a>
<span class="sourceLineNo">164</span>            }<a name="line.164"></a>
<span class="sourceLineNo">165</span>        });<a name="line.165"></a>
<span class="sourceLineNo">166</span>    }<a name="line.166"></a>
<span class="sourceLineNo">167</span><a name="line.167"></a>
<span class="sourceLineNo">168</span>    /**<a name="line.168"></a>
<span class="sourceLineNo">169</span>     * Notify about failure, if appropriate. This method is idempotent.<a name="line.169"></a>
<span class="sourceLineNo">170</span>     *<a name="line.170"></a>
<span class="sourceLineNo">171</span>     * @param session session on which the message was transmitted<a name="line.171"></a>
<span class="sourceLineNo">172</span>     * @param executor executor used to issue notification<a name="line.172"></a>
<span class="sourceLineNo">173</span>     * @param status failure status<a name="line.173"></a>
<span class="sourceLineNo">174</span>     */<a name="line.174"></a>
<span class="sourceLineNo">175</span>    public synchronized void notifyFailure(final Session session, Executor executor, final Status status) {<a name="line.175"></a>
<span class="sourceLineNo">176</span><a name="line.176"></a>
<span class="sourceLineNo">177</span>        // Sanity check<a name="line.177"></a>
<span class="sourceLineNo">178</span>        if (executor == null)<a name="line.178"></a>
<span class="sourceLineNo">179</span>            throw new IllegalArgumentException("null executor");<a name="line.179"></a>
<span class="sourceLineNo">180</span>        if (status == null)<a name="line.180"></a>
<span class="sourceLineNo">181</span>            throw new IllegalArgumentException("null status");<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span>        // Is failure notification desired?<a name="line.183"></a>
<span class="sourceLineNo">184</span>        if (!(this.reportListener instanceof FailureListener))<a name="line.184"></a>
<span class="sourceLineNo">185</span>            return;<a name="line.185"></a>
<span class="sourceLineNo">186</span>        final FailureListener failureListener = (FailureListener)this.reportListener;<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span>        // Only notify once<a name="line.188"></a>
<span class="sourceLineNo">189</span>        this.reportListener = null;<a name="line.189"></a>
<span class="sourceLineNo">190</span><a name="line.190"></a>
<span class="sourceLineNo">191</span>        // Notify<a name="line.191"></a>
<span class="sourceLineNo">192</span>        executor.execute(new Runnable() {<a name="line.192"></a>
<span class="sourceLineNo">193</span>            @Override<a name="line.193"></a>
<span class="sourceLineNo">194</span>            public void run() {<a name="line.194"></a>
<span class="sourceLineNo">195</span>                try {<a name="line.195"></a>
<span class="sourceLineNo">196</span>                    failureListener.reportFailure(session, OutputChunks.this.messageId, status);<a name="line.196"></a>
<span class="sourceLineNo">197</span>                } catch (ThreadDeath t) {<a name="line.197"></a>
<span class="sourceLineNo">198</span>                    throw t;<a name="line.198"></a>
<span class="sourceLineNo">199</span>                } catch (Throwable t) {<a name="line.199"></a>
<span class="sourceLineNo">200</span>                    OutputChunks.this.log.error("error in listener notification", t);<a name="line.200"></a>
<span class="sourceLineNo">201</span>                }<a name="line.201"></a>
<span class="sourceLineNo">202</span>            }<a name="line.202"></a>
<span class="sourceLineNo">203</span>        });<a name="line.203"></a>
<span class="sourceLineNo">204</span>    }<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span>// Iterator<a name="line.206"></a>
<span class="sourceLineNo">207</span><a name="line.207"></a>
<span class="sourceLineNo">208</span>    @Override<a name="line.208"></a>
<span class="sourceLineNo">209</span>    public synchronized boolean hasNext() {<a name="line.209"></a>
<span class="sourceLineNo">210</span>        return !this.complete;<a name="line.210"></a>
<span class="sourceLineNo">211</span>    }<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span>    @Override<a name="line.213"></a>
<span class="sourceLineNo">214</span>    public synchronized MsrpRequest next() {<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span>        // Already done?<a name="line.216"></a>
<span class="sourceLineNo">217</span>        if (this.complete)<a name="line.217"></a>
<span class="sourceLineNo">218</span>            throw new NoSuchElementException();<a name="line.218"></a>
<span class="sourceLineNo">219</span><a name="line.219"></a>
<span class="sourceLineNo">220</span>        // Update timestamp<a name="line.220"></a>
<span class="sourceLineNo">221</span>        this.timestamp = System.nanoTime();<a name="line.221"></a>
<span class="sourceLineNo">222</span><a name="line.222"></a>
<span class="sourceLineNo">223</span>        // Generate new transaction ID<a name="line.223"></a>
<span class="sourceLineNo">224</span>        final String transactionId = MsrpMessage.randomId();<a name="line.224"></a>
<span class="sourceLineNo">225</span><a name="line.225"></a>
<span class="sourceLineNo">226</span>        // Prepare MSRP request (without body yet)<a name="line.226"></a>
<span class="sourceLineNo">227</span>        final MsrpHeaders msrpHeaders = new MsrpHeaders();<a name="line.227"></a>
<span class="sourceLineNo">228</span>        msrpHeaders.getFromPath().add(this.localURI);<a name="line.228"></a>
<span class="sourceLineNo">229</span>        msrpHeaders.getToPath().add(this.remoteURI);<a name="line.229"></a>
<span class="sourceLineNo">230</span>        msrpHeaders.setMessageId(this.messageId);<a name="line.230"></a>
<span class="sourceLineNo">231</span>        msrpHeaders.setContentType(this.contentType);<a name="line.231"></a>
<span class="sourceLineNo">232</span>        msrpHeaders.setSuccessReport(false);<a name="line.232"></a>
<span class="sourceLineNo">233</span>        msrpHeaders.setSuccessReport(this.reportListener instanceof SuccessListener);<a name="line.233"></a>
<span class="sourceLineNo">234</span>        if (this.reportListener instanceof FailureListener)<a name="line.234"></a>
<span class="sourceLineNo">235</span>            msrpHeaders.setFailureReport(FailureReport.YES);<a name="line.235"></a>
<span class="sourceLineNo">236</span>        else<a name="line.236"></a>
<span class="sourceLineNo">237</span>            msrpHeaders.setFailureReport(FailureReport.PARTIAL);            // we always want to see 481 or 586 errors<a name="line.237"></a>
<span class="sourceLineNo">238</span>        if (this.headers != null) {<a name="line.238"></a>
<span class="sourceLineNo">239</span>            for (Header header : this.headers) {<a name="line.239"></a>
<span class="sourceLineNo">240</span>                if (MsrpRequest.isMimeHeader(header.getName()))<a name="line.240"></a>
<span class="sourceLineNo">241</span>                    msrpHeaders.getMimeHeaders().add(header);<a name="line.241"></a>
<span class="sourceLineNo">242</span>                else<a name="line.242"></a>
<span class="sourceLineNo">243</span>                    msrpHeaders.getExtensionHeaders().add(header);<a name="line.243"></a>
<span class="sourceLineNo">244</span>            }<a name="line.244"></a>
<span class="sourceLineNo">245</span>        }<a name="line.245"></a>
<span class="sourceLineNo">246</span>        final MsrpRequest request = new MsrpRequest(transactionId, MsrpConstants.METHOD_SEND, msrpHeaders);<a name="line.246"></a>
<span class="sourceLineNo">247</span><a name="line.247"></a>
<span class="sourceLineNo">248</span>        // Aborted?<a name="line.248"></a>
<span class="sourceLineNo">249</span>        if (this.aborted) {<a name="line.249"></a>
<span class="sourceLineNo">250</span>            if (this.input != null)<a name="line.250"></a>
<span class="sourceLineNo">251</span>                msrpHeaders.setByteRange(new ByteRange(this.offset + 1, this.offset, this.size));<a name="line.251"></a>
<span class="sourceLineNo">252</span>            request.setAborted(true);<a name="line.252"></a>
<span class="sourceLineNo">253</span>            this.complete = true;<a name="line.253"></a>
<span class="sourceLineNo">254</span>            return request;<a name="line.254"></a>
<span class="sourceLineNo">255</span>        }<a name="line.255"></a>
<span class="sourceLineNo">256</span><a name="line.256"></a>
<span class="sourceLineNo">257</span>        // No input?<a name="line.257"></a>
<span class="sourceLineNo">258</span>        if (this.input == null) {<a name="line.258"></a>
<span class="sourceLineNo">259</span>            this.complete = true;<a name="line.259"></a>
<span class="sourceLineNo">260</span>            this.closed = true;<a name="line.260"></a>
<span class="sourceLineNo">261</span>            request.setComplete(true);<a name="line.261"></a>
<span class="sourceLineNo">262</span>            return request;<a name="line.262"></a>
<span class="sourceLineNo">263</span>        }<a name="line.263"></a>
<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span>        // Read next chunk of message content and append as body<a name="line.265"></a>
<span class="sourceLineNo">266</span>        final ByteArrayOutputStream body = new ByteArrayOutputStream();<a name="line.266"></a>
<span class="sourceLineNo">267</span>        final long startingOffset = this.offset;<a name="line.267"></a>
<span class="sourceLineNo">268</span>        try {<a name="line.268"></a>
<span class="sourceLineNo">269</span><a name="line.269"></a>
<span class="sourceLineNo">270</span>            // Read until buffer is full, we've read full amount, or there's no more data to read<a name="line.270"></a>
<span class="sourceLineNo">271</span>            while (body.size() &lt; MAX_REQUEST_BODY_SIZE) {<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
<span class="sourceLineNo">273</span>                // Have we read the full amount?<a name="line.273"></a>
<span class="sourceLineNo">274</span>                if (this.size != -1 &amp;&amp; this.offset &gt;= this.size) {<a name="line.274"></a>
<span class="sourceLineNo">275</span>                    this.complete = true;<a name="line.275"></a>
<span class="sourceLineNo">276</span>                    break;<a name="line.276"></a>
<span class="sourceLineNo">277</span>                }<a name="line.277"></a>
<span class="sourceLineNo">278</span><a name="line.278"></a>
<span class="sourceLineNo">279</span>                // Read more data<a name="line.279"></a>
<span class="sourceLineNo">280</span>                final byte[] buf = new byte[MAX_REQUEST_BODY_SIZE - body.size()];<a name="line.280"></a>
<span class="sourceLineNo">281</span>                final int r = this.input.read(buf);<a name="line.281"></a>
<span class="sourceLineNo">282</span><a name="line.282"></a>
<span class="sourceLineNo">283</span>                // No more data?<a name="line.283"></a>
<span class="sourceLineNo">284</span>                if (r &lt; 0) {<a name="line.284"></a>
<span class="sourceLineNo">285</span>                    if (this.size != -1)<a name="line.285"></a>
<span class="sourceLineNo">286</span>                        throw new IOException("expected to read " + this.size + " bytes but only read " + this.offset);<a name="line.286"></a>
<span class="sourceLineNo">287</span>                    this.complete = true;<a name="line.287"></a>
<span class="sourceLineNo">288</span>                    break;<a name="line.288"></a>
<span class="sourceLineNo">289</span>                }<a name="line.289"></a>
<span class="sourceLineNo">290</span><a name="line.290"></a>
<span class="sourceLineNo">291</span>                // Update with new data<a name="line.291"></a>
<span class="sourceLineNo">292</span>                body.write(buf, 0, r);<a name="line.292"></a>
<span class="sourceLineNo">293</span>                this.offset += r;<a name="line.293"></a>
<span class="sourceLineNo">294</span>            }<a name="line.294"></a>
<span class="sourceLineNo">295</span>        } catch (IOException e) {<a name="line.295"></a>
<span class="sourceLineNo">296</span>            this.log.error("I/O error reading MRSP message input, aborting message " + this.messageId, e);<a name="line.296"></a>
<span class="sourceLineNo">297</span>            this.aborted = true;<a name="line.297"></a>
<span class="sourceLineNo">298</span>        }<a name="line.298"></a>
<span class="sourceLineNo">299</span>        request.setBody(body.toByteArray());<a name="line.299"></a>
<span class="sourceLineNo">300</span><a name="line.300"></a>
<span class="sourceLineNo">301</span>        // Set byte range and request flags<a name="line.301"></a>
<span class="sourceLineNo">302</span>        msrpHeaders.setByteRange(new ByteRange(startingOffset + 1, this.offset, this.size));<a name="line.302"></a>
<span class="sourceLineNo">303</span>        request.setComplete(this.complete);<a name="line.303"></a>
<span class="sourceLineNo">304</span>        request.setAborted(this.aborted);<a name="line.304"></a>
<span class="sourceLineNo">305</span><a name="line.305"></a>
<span class="sourceLineNo">306</span>        // Ensure input gets closed<a name="line.306"></a>
<span class="sourceLineNo">307</span>        if (this.aborted || this.complete)<a name="line.307"></a>
<span class="sourceLineNo">308</span>            this.close();<a name="line.308"></a>
<span class="sourceLineNo">309</span><a name="line.309"></a>
<span class="sourceLineNo">310</span>        // Done<a name="line.310"></a>
<span class="sourceLineNo">311</span>        return request;<a name="line.311"></a>
<span class="sourceLineNo">312</span>    }<a name="line.312"></a>
<span class="sourceLineNo">313</span><a name="line.313"></a>
<span class="sourceLineNo">314</span>    @Override<a name="line.314"></a>
<span class="sourceLineNo">315</span>    public void remove() {<a name="line.315"></a>
<span class="sourceLineNo">316</span>        throw new UnsupportedOperationException();<a name="line.316"></a>
<span class="sourceLineNo">317</span>    }<a name="line.317"></a>
<span class="sourceLineNo">318</span><a name="line.318"></a>
<span class="sourceLineNo">319</span>// Closeable<a name="line.319"></a>
<span class="sourceLineNo">320</span><a name="line.320"></a>
<span class="sourceLineNo">321</span>    /**<a name="line.321"></a>
<span class="sourceLineNo">322</span>     * Close the {@link InputStream} associated with this instance.<a name="line.322"></a>
<span class="sourceLineNo">323</span>     * This method is idempotent.<a name="line.323"></a>
<span class="sourceLineNo">324</span>     *<a name="line.324"></a>
<span class="sourceLineNo">325</span>     * &lt;p&gt;<a name="line.325"></a>
<span class="sourceLineNo">326</span>     * This class ensures that this method gets invoked after the final {@link MsrpMessage} is<a name="line.326"></a>
<span class="sourceLineNo">327</span>     * retrieved from {@link #next}.<a name="line.327"></a>
<span class="sourceLineNo">328</span>     * &lt;/p&gt;<a name="line.328"></a>
<span class="sourceLineNo">329</span>     *<a name="line.329"></a>
<span class="sourceLineNo">330</span>     * &lt;p&gt;<a name="line.330"></a>
<span class="sourceLineNo">331</span>     * If the message has not been fully sent when this method is invoked, the message will be aborted.<a name="line.331"></a>
<span class="sourceLineNo">332</span>     * &lt;/p&gt;<a name="line.332"></a>
<span class="sourceLineNo">333</span>     */<a name="line.333"></a>
<span class="sourceLineNo">334</span>    @Override<a name="line.334"></a>
<span class="sourceLineNo">335</span>    public synchronized void close() {<a name="line.335"></a>
<span class="sourceLineNo">336</span><a name="line.336"></a>
<span class="sourceLineNo">337</span>        // Sanity check<a name="line.337"></a>
<span class="sourceLineNo">338</span>        if (this.closed)<a name="line.338"></a>
<span class="sourceLineNo">339</span>            return;<a name="line.339"></a>
<span class="sourceLineNo">340</span>        this.closed = true;<a name="line.340"></a>
<span class="sourceLineNo">341</span><a name="line.341"></a>
<span class="sourceLineNo">342</span>        // If not completed, abort<a name="line.342"></a>
<span class="sourceLineNo">343</span>        if (!this.complete)<a name="line.343"></a>
<span class="sourceLineNo">344</span>            this.aborted = true;<a name="line.344"></a>
<span class="sourceLineNo">345</span><a name="line.345"></a>
<span class="sourceLineNo">346</span>        // Close input<a name="line.346"></a>
<span class="sourceLineNo">347</span>        try {<a name="line.347"></a>
<span class="sourceLineNo">348</span>            if (this.input != null)<a name="line.348"></a>
<span class="sourceLineNo">349</span>                this.input.close();<a name="line.349"></a>
<span class="sourceLineNo">350</span>        } catch (IOException e) {<a name="line.350"></a>
<span class="sourceLineNo">351</span>            // ignore<a name="line.351"></a>
<span class="sourceLineNo">352</span>        }<a name="line.352"></a>
<span class="sourceLineNo">353</span>    }<a name="line.353"></a>
<span class="sourceLineNo">354</span>}<a name="line.354"></a>
<span class="sourceLineNo">355</span><a name="line.355"></a>




























































</pre>
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